Dump wagon



oct. 22, 1935. J, KUCHAR 2,018,178

DUMP WAGON Filed Dec. 1l, 1953 2 Sheets-Sheet l 4 f\./$-/ /\l @I y 0` Y AvOlst. 22, 1935. J, KUCHAR 2,018,178

DUMP WAGON Filed Deo. ll, 1953 2 Sheets-Sheet 2 Patented Oct. 22, 1935 UNITED lSTATES PATENT OFFICE DUMP WAGON Joseph Kuchar, Chicago, Ill., assigner to Athcy Truss Wheel Co., Chicago, Ill., a corporation of Illinois This invention relates to dump wagons and more particularly to the pivotal support of dump Wagons and to control means associated therewith whereby the wagon 4may be dumped to either side at will.

The invention will be described in its application to a wagon particularly adapted for the quarrying industry. It will, however, be readily understood that it may be applied to wagons and trailers intended for other purposes.

The invention will readily be understood from the following description of a preferred embodiment thereof, taken in conjunction with the accompanying drawings, in which Figure l is an end elevation of a wagon embodying the invention;

Fig. 2 is an elevational detail showing a hinge as viewed from one side;

Fig. 3 is a sectional detail view taken on the line 3-3 of Fig. 2;

Fig. 4 is a View similar to Fig. 3 showing the location of the hinge or pivot elements at the end of the dumping movement;

Fig. 5 is a sectional detail view taken on the line 5 5 of Fig. 3, and

Fig. 6 is a sectional detail view taken on the line 6 6 of Fig. l. f

Referring to the drawings, the reference numeral I9 designates a wagon body of a type particularly suitable for the transportation of rocks. This body is of general hopper-like shape having upwardly and outwardly diverging side walls II reinforced by suitable beams I2. The structure of this body need not be described minutely, the same being substantially similar to the body described in my previous Patent No. 1,909,969. The body I0 is provided within two'longitudinal extending supporting channels I3 which are adapted to seat upon two longitudinal channels I4 which are the principal elements of the main frame I5. 'Ihe longitudinal channels 14 are rigidly secured together by suitable transverse members and the main frame I5 constituted thereby is supported upon track laying wheels I6 which may be of any suitable type. The main frame I5 is provided with suitable hitch means (not shown) whereby the wagon or trailer may be operatively connected to a trailer or other traction means. At each end the channels I 4 have mounted thereon a pair of spaced transverse channels I'I.

Mounted between, and secured to these channels are hinge elements I8, one of said elements being located each corner of the body. Upon the body are mounted corresponding cooperating hinge elements I9, likewise located one adjacent each corner to cooperate with the hinge elements I8.

Each hinge element I8 of the 'frame is 'provided with an inner socket or cup 29, preferably of substantial size, and an outer socket or cup 5 2l which is preferably small compared with the socket 219. The hinge element I8, which may suitably be a casting, vcomprises side walls 22 which are provided at their upper ends with outwardly directed flanges 23 which rest on the top 10 webs of the channels I'I and are secured thereto by rivets. 'The socket or cup 2i) is preferably of semi-cylindrical shape, the ends of the cylinder being formed by the side walls 2'2. At 'its lowest point the cylindrical Wall of the socket 29 15 is provided with an opening ANI for the escape of rain water, dirt and the like. The socket 2I is likewise of partial cylindrical shape. The socket 2-9 and the socket 2l are preferably constituted by a continuous web which provides these 20 cylindrical surfaces and also a connecting web 'i5 and an outer web Z6 which extend downwardly and inwardly, as best seen in Figs. 3 and 4. On each side of the socket 20, the hinge element lit carries upwardly directed projections 2l 25 which are located in substantial alignment with the transverse center `of 'the socket 20. The projections 21 are provided with transversely aligned openings 218 which freely receive andguide a locking bar 29, which will hereinafter be more 30 fully described.

Hinge element I9 is preferably in the form of a hollow Ycasting provided with a main plate 30 whereby the same may be riveted to the body. Depending from the main plate 30 are the two 85 parallel side walls 3l of the Acasting I9. 'Ihese side walls are connected by webs 32 to provide a substantially box-like structure.

The `webs 32 are provided with openings 33 and Bil so that the locking bar 29 may pass 0 therethrough and permit a considerable degree of free movement between the hinge element I9 and the hinge element I8. The lower ends of the side plates 3l are normally received within the socket 29 and are correspondingly shaped so 45 Ias to rotate freely therein. That is, the lower ends of the side walls 3-I are substantially semicircular and the interconnecting web 32 is of cylindrical form at that location so as to provide an ample bearing surface cooperating with the 50 surface of the socket 20. l

Adjacent its upper end and on the outer face thereof the hinge element I9 is provided with a substantially cylindrical bearing member 35 which is adapted 'to be received in the `corre- 65 Y' sponding socket 2I during the final portion of pv side, its remote end is withdrawn into the inneras best seen Vin Fig. 1.

'theV front and the rear are adapted to be'actuportion of the locking element 46.

Yjection V4I i Suitable stops 42 are provided so as to limit the vextreme movement of the arms 4Ilso as to correspond with the locking position of the bars 29 Vthe tilting. The bearing member 35 Amay suit- Vably be somewhat smaller in diameterthan the socket 2I. The bearing member 35 is preferably .an integral portion of the casting I9 and is preferably formed with a core hole 36 to insure a more perfect casting at this point.

As best'seen in Fig. 3, the hinge element I9 is provided with a transverse formation 31 which is located in the socket 2D and is normally posi- V ,tioned out ofY contact with the locking bar 29 so that this bar may be readily movedby hand for the purpose hereinafter described. The element 31 Vmay suitably be a cylinder integral with the hinge element I9 and located Within the confines of the side walls 3I between which it extends. The cylindrical element 31 preferably merges into the flange 32 and is suitably locatedV at the lower end oi.' the opening 33 in the outer face of the web 32. As best seen in Fig. 3, the cylindrical element 31 is located toward the outside away from the center of the socket 20 in its normal position.

Vthe rear. Each locking bar 29 is of such length that when it extends between the guide elements or projections 21 oi' the hinge element I8 on one most guide 21 on the other side of the wagon, The locking bars 29 at ated in unison. When the bars 29 are thrown to the right, as viewed in Fig; 1, vand the Yhoist 38, which may be of suitable type, is extended. the body will tilt to the right in. the manner illustrated When the hoist 38 is retracted, the body will return to the full-line position.

The means fo-r actuating the ,bars 29 together may suitably comprise a longitudinal rod 39 which extendsV from .oneend of the frame to the other and has bearings inthe channels I1. Between these channels, at both ends of the frame, the rod 39 has rigidly mounted thereon an arm 48' having a bifurcated end which engages a proon the associated locking bar 29.

on one side or the other, as best seen in Figs. 3 and 4. At one end of the wagon the rod 39 Yhas rigidly mountedfthereon a hand lever 43 whereby the desired actuation of thelocking bars 29 may readily be effected.

Y It is very desirable to provide means to prevent accidental throwing of the hand lever 43Y during the elevating movement of the body, and particularly during the initial movement of the body. For this purpose I provide a locking element 44V which is provided with an opening 45 which freely receives one of the locking bars Y29, the opening 45 beinggsomewhat deeper than Y the lockingV bar.

The locking element 44 is provided within the opening 45 and, in the lower side thereof, with a tooth 46. The locking element 44 isrnormally pressed upwardly by means of a spring 41 which surrounds the main body The spring ing bar is provided onnits under side with a pair in dash-and-dot lines in Fig. 1.V

of notches 49 so locatedthat when the locking bar is in either of its extreme positions, one or other of the notches 49 is immediately above the tooth 46. The locking element 44 is adapted to be pressed downwardly somewhat by` contact 5 with the body I0, when'theV body is in its normal load-carrying position. As a result of this 'contact between the body I0 and the locking member 44, the tooth 46 is normally maintained out of either of the notches 49 and out of engage- 10 ment with the locking barr29 so that the bars 29 may be thrown to one side or the other by means of ther-hand lever 43. When, however. the body rises for tilting to the appropriate side as a result of the extension of the hoist 33, the 15 locking member 44 is moved upwardly and the tooth 46 is brought into the appropriate notch 39. Thereafter the handle 43 cannot be moved until the body returns to initial position and again depresses the locking member 44. 20 Y The operation of the wagon is asfollows: To cause the wagon to dump to one vside or the other, for example the/right side, as viewed in Y Figs.'1, 3 and 4, the leverV 43 is thrown to the right as viewed in these figures, and the lock- 25 ing bars 29 are consequently thrown to the right Vso that they extend between the guides 21` of the right-hand hinge members I8 and are withdrawn from between the Vguide members 21 on the left-hand side of the wagon. The hoist 38 30 is then caused to extend. YIn the event that the load is heavier on the left-hand side, the first thing that willY happen is that the right-hand side of the body will move upwardly slightly'-unV til the contact members 31 on the right-hand 35 side of the wagon abut against the locking bars 29. When this occurs the upward movement of the right-hand side of the wagon is terminated and the left-hand side of 'the wagon rises. As a result of this rising the cylindrical formations of o .Y

right-hand hinge elements I9'rotate within their 50 V sockets 20, the transverse contact elements 31 moving therewith in a planetary manner about the horizontal axis of the socket 20Y as center. It will readily be understood that the bearing member 35 is carried by this movement towards 55 the socket 2I and eventually it makes contact with this socket. VAt that time the transverse contact member 31 has arrived at a low position in the socket 20, in fact a position practically at the bottom of the socket 20. w The pivotal support of the tilting-body is now taken over by the bearing members 35 and the sockets 2| on the right-hand side of the wagon. Continued extension of the hoist 38 consequently rotates the body about the bearing members 35. As a result of the movement of the hinge elements I9 about the bearing members 35 as centers, the contact members 31 elevate within the sockets 20 in the manner shown in Fig. 4. The slots 33 and 34 previously referred to are, of 70 course, sufficiently long to permit this movement without fouling thelocking bars 29. V'I'he extreme tilting movement of the body is preferably determined by the degree of extension of which the hoist 38 is capable. Y When the body is ,5

tilted to its extreme position the contact member 31 is preferably just out of contact with the Aassociated locking bar 29.

It is to be noted that by transferring 'the pivotal support of the body from the sockets 20 to the sockets 2i during the latter portion of tilting, I am able to tilt much further than would otherwise be the case with a wagon in which gravity is relied upon to return the body to initial loadreceiving position. Thus, as illustrated .in Fig. 1, I may tilt the body upwardly to a position where its center of gravity `may lie outwardly of the axis of the sockets 20. Since the center of gravity will, however, lie on the inner side of the axis of the sockets 2 l, it will readily be seen that when the pressure on the hoist 38 is released, the body will automatically return to load-receiving position.

Although the invention has been disclosed in connection with the specific details of a preferred embodiment thereof, it must be understood that such details are not intended to be limitative of the invention except in so far as set forth in the accompanying claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a dump wagon, in combination, a wagon body, a frame on which said body is carried, socket members and pivot members carried by the body and frame providing axes for dumping on either side, means providing further axes outwardly beyond the rst said axes, a locking bar extending transversely of the body adapted to lock a socket on one side or the other, and an eccentric member on the associated pivot located adjacent said bar during normal support and moving remote from the bar during dumping about the innermost axis to permit separation or the cooperating socket and pivot members during further tilting movement on the outermost axis.

2. In a dump wagon, in combination, a wagon body, a frame on which said body is carried, socket members on each side of the frame and corresponding pivots on each side of the body providing longitudinal axes for the dumping of the body to either side, means on said body and frame providing further axes outwardly of the first said axes, locking bars extending transversely of the body and adapted to close the sockets on one side or the other, and contact members carried by said pivots within the sockets and eccentric relative to said sockets, having a position near the locking bar in normal position of the body and moving remote from the bar during dumping about the innermost axis to permit separation of the cooperating socket members and pivots during further tilting movement on the outermost axis.

3. A hinge for dump wagons comprising a chassis element and a body element, said elements having a hollow pivot and socket denning an innermost dumping axis, means on said elements defining an outer dumping axis, a locking member across said socket and through said pivot, and an eccentric member on said pivot adapted to make contact with said locking member to control dumping and to move away from said locking member during the dumping about the innermost axis.

4. A hinge for dump wagons comprising a chassis element and a body element, said elements having a pivot and socket defining an innermost dumping axis, means on said elements defining an router dumping axis, and a locking bar extending across said socket, said pivot comprising a member smaller than said socket and located therein `adapted to engage said locking bar, said member having la position near the bar in normal load-carrying position of the hinge and being adapted toi move away from the bar during dumping about the innermost axis.

5. A hinge for dump wagons comprising a body element and a frame element, means on said elements providing spaced pivotal axes for dumping,` a movable locking member on one element adjacent the innermost axis having locking and unlocked positions, and means on the other element eccentric to said axis adapted to engage said locking member in its locking position, said means being normally located adjacent said locking member in its locking position, and moving relatively away therefrom during dumping about the innermost axis to provide freedom for movement during dumping about the other axis.

6. A hinge for dump wagons having an inner axis and an outer axis on which the body pivots during dumping, comprising a body element and a chassis element, movable locking means associated with one element in transverse relation to said inner axis and having locking and unlocked positions, and a contact member on the other element in planetary relation to said inner axis, said contact member being located near said locking means in load-carrying position when said means is in locking position whereby separation of the hinge elements is prevented, said contact member being adapted to move away from said locking means during tilting about the inner axis whereby to provide clearance between said contact member and said locking means for tilting about the outer axis thereafter.

7. A hinge for dump wagons comprising a body element and a frame element, means on said elements providing spaced pivotal axes for dumping, a movable locking member on one element adjacent the innermost axis having locking and unlocking positions, and means carried by the other element between said axes adapted to engage said locking element in its locking position, said means being normally located adjacent said locking member in its locking position and moving relatively away therefrom during dumping about the innermost axis to provide freedom for movement during dumping about the innermost axis.

8. A hinge for dump wagons comprising a chassis element and a body element, said elements having a pivot and socket defining an innermost dumping axis, means on said elements defining an outer dumping axis, and a locking bar slidably mounted in one element and extending across said socket, a member carried by the other element between the innermost and outer axis adapted to engage said locking bar, said member having a position near the bar in normal load-carrying position of the hinge and being adapted to move away from the bar during dumping about the innermost axis.

9. In a dump wagon, in combination, a wagon body, a frame on which said body is carried, socket members and pivot members carried by the body and frame providing axes for dumping on either side, means providing further axes outwardly beyond the rst said axes, a slidable locking bar extending transversely of the body, and a member carried by the body between said in- 4 Y Y v2,018,178

nermost and outer axes located adjacent said frame providing further axes outwardly of the bar during normal support and moving remote rst said axes, and slidable locking bars extendfrom the bar during dumping about the adjacent ing transversely of the body and contact mem- Y innermost axes to permit Vseparation of the cobers each carried by the body between an inner- -5 operating Vsocket and pivot members during fur'- most axis and an adjacent outermost axis having 5 i ther tilting movement on the adjacent outer axis. a. position near one ofthe locking bars in nor- .10.YIn a dump wagon, in combination, a wagon mal position of the body and moving from the lbody, a frame on which said body is carried, bar during dumping movement about its innersocket members on each side of the frame and most axis to permit separation of the cooperat- 10` corresponding pivots on each side `of the body ing socket member and pivot during further tilt- 10 ,Y

providing longitudinal axes for the dumping of ing on its outermost axis. the body tc either side, means on said body and JOSEPH KUCHAR. 

